Fig. 2

Analysis of FLNC expression in FTD patients at transcript and protein level. a qRT-PCR analysis showed significantly increased levels of both the short and long isoform of FLNC in the frontal cortex of FTLD-TDP patients with GRN haploinsufficiency. The long isoform was also significantly increased in FTLD-TDP patients without a known mutation in causal FTD-ALS genes. b Increased expression levels of FLNC were confirmed on protein level using immunoblot analysis. In contrast to transcript levels, FLNC was also upregulated in VCP and FLNC variation carriers. Elevated phosphorylated FLNC levels at serines 2113 and 2213 (pSer²¹¹³ and pSer²²¹³) were identified to a variable extent in GRN and VCP mutation carriers compared to controls. *P < 0.05; ***P < 0.001